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Say Good-Bye to the Forcing 1NT* Bid? Provided by Neil H

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Say Good-Bye to the Forcing 1NT* Bid? Provided By Neil H. Timm A significant number of duplicate bridge players play the 2/1 Game Force System or Precision where the common response to a major suit opening bid with 7-12 dummy points and ≤ 2-card support for the major is to bid 1NT* as either Forcing, Semi-forcing or some Hybrid which depends on the major suit bid (e.g. over 1♠ forcing and over 1♥ semi-forcing). 1NT* forcing is fast becoming the “NON-STANDARD” because a 5-2 fit will only do better than 1NT when dummy provides fast ruffing values or if the opponents can run a long suit. Otherwise 1NT is a much better contract! An alternative to the 1NT* forcing response is called the Two-Club Marionette Convention suggested by Allan DeSerpa (2017), “The Two-Club Marionette Good-bye Forcing Notrump”, DeSerpa Publications. The Basic Two-Club Marionette Convention Over a bid of a major suit by the opener, responder is required to make the artificial bid of two-clubs; however with a 3352 had and between 0-9HCP, responder may pass. So, the bid is very much like the semi-forcing 1NT* bid. With 10-12, responder makes the bid of 2♣* announced as semi-forcing. Most of the time the opener is required to make the relay bid of 2♦* which is alerted by responder; however, if opener DOES NOT bid 2♦*, a rebid of the major is made which denies game interest with 11-12HCP. The bidding sequences are then: (1) 1♥ - 2♣* - 2♥ - ? Where ⇒ command puppet relay to next bid Rebids 2+ ♥ Short ♥’s Limit Raise Pass Game Force 2NT⇒3♣ 2NT⇒3♣ Balanced Invitational Pass Pass 6-card Invitational 2♠⇒2NT 3♣/3♦ Forcing Raise 3♥/4♥ Strong Preempt 4♥ (2) 1♠ -2♣* - 2♠ -? Where ⇒ command puppet relay to next bid Rebids 2+ ♠ Short ♠’s Limit Raise Pass Game Force 2NT⇒3♣ 2NT⇒3♣ Balanced Invitational Pass Pass 6-card Invitational 2NT⇒3♣ 3♣/3♦/3♥ Forcing Raise 3♠/4♠ Strong Preempt 4♠ Other Basic Exceptions (suggested by Timm) (1) If you play the Two-club Marionette or the Two-Way Nebulous 2♣* Convention with ambiguous splinters, responder with 13+dummy points and a singleton somewhere may not bid 2♣*, but bid: 1♠ - pass - 3♥* (singleton somewhere) – to ask where, bid next step (3♠) Then 4♥ - 4♣ - 4♦ show singletons (direct bids) – or some may prefer use submarine-like bids 3NT*=♣, 4♣*=♦, and 4♦*=♥ to avoid a double. 1♥ - pass - 3♠* (singleton somewhere) – to ask where, bid next step (3NT) Then 4♣ - 4♦ show singletons and 4♥= spades (singleton) – or again you may use submarine- like bids 4♥=♠, 4♣*=♦, and 4♦*=♥ to avoid a double. Voids 1♠ - pass - 4♣*/4♦*(void in suit bid) and 3NT * = heart void. 1♥ - pass - 4♣*/4♦* (voids in suit bid) and 3NT* = spade void (2) If you play the Kaplan Inversion/Interchange Convention Be careful there are several versions of this convention; DeSerpa (2017) calls it Puppet Kaplan. The basic reason for the convention is to allow opener to play in 1NT with 0-4 spades and a bad hand (0-9HCP. (3) The Marionette Convention is off over interference (4) Play that it is off with any convention with 4+ card support and 12+HCP (e.g. Jacoby 2NT*) or conventions with 10-12 Dummy points and 4-card support (e.g. the Reverse Bergen bid of 3♣* or Bergen bid of 3♦*). DeSerpa (2017) only recommends that it be OFF with interference since he suggests conventions like Puppet Kaplan, Piggyback relays and Piggyback power bids, Sixpack, midi-splinters and fit bids. The normal sequences of bids are: 1♥/1♠- 2♣* → 2♦* (artificial and forcing) -? Where → denotes a requested relay 2♥/2♠ = 3-card support 10-12 dummy points 2oM = (two of the other major) artificial. Shows an unbalanced hand with 5+ clubs 2NT = natural, balanced invitational (10-12HCP) 3♣ = 6+clubs, game invitational 3♦ = 6+diamonds, game invitational 3♥/3♠ = 10+HCP forcing raise with 3-card support and clubs 3NT = balanced 13-15 and 2-card support for the bid major 4♥/4♠ = strong preempt Basic Marionette opener rebid rules after responder’s 2♦* bid After an opening 1♠ opener ALWAYS rebids 2♥ (Forcing and unlimited) After an opening 1♥ a rebid of 2♠=17+ (a reverse bid) A bid of 2NT=18-19 shows 5332 shape and a doubleton club All bids after responder’s 2NT bid are weak and descriptive 3M = natural and 6+card major, over 2NT/3NT Artificial game Force: Opener’s Rebid Rebids 1♥ - 2♣* →2♦* - 2♠ 1♠ - 2♣* →2♦* - 2♥ 2♠ 6-card suit 2NT→3♣ Club raise denies major Club raise denies major shortness shortness 3♣ → 3♦ Diamonds Diamonds 3♦ 6-card suit 3♥ Balanced 12-14 Balanced 12-14 3♠ Short Spades** Short Hearts 3NT Balance 18-19 short clubs Balance 18-19 short clubs ** Unless opener needs the natural spade bid Higher bids by opener over responder’s bid of 2NT or higher are natural; the rebid of 2NT may contain a singleton in opener’s major. The forcing raises of 3M are designed to be slam-oriented since responder may raise opener’s suit after showing a club suit. Let’s now look at a few examples. Opener Responder ♠AK876 ♠Q ♥A2 ♥K10543 ♦753 ♦Q8943 ♣Q107 ♣75 Opener has 14 starting points and Responder has 8 starting points. Playing 1NT* forcing the bidding goes: Opener Responder 1♠ 1NT* 2♣ 2♥ Pass Pass Playing Two-Club Marionette, responder has less than 10HCP and responder would pass. If responder forgot, it would go 1♠ -2♣* → 2♦ - Pass. Both 1NT or 2♦ make for a score of 90 while those playing 1NT* as forcing in either 2♥/2♠ spades go down one which happen over 60% of the time. Is it time to change? Opener Responder ♠76 ♠A ♥KQ765 ♥A3 ♦Q53 ♦J10942 ♣AJ9 ♣K8743 Opener has 13 starting points and responder has 14. Playing 1NT forcing the bidding may go: Opener Responder 1♥ 1NT* 2♣ 2♦ 3♣ Pass Playing the Kaplan interchange one may bid: Opener Responder 1♥ 1♠* (less that 4-spades) 1NT 2♣ Relay with 8+ 2♦* Pass Instead of passing 2♦* some may bid 2NT* to show 5-5 and opener would bid 3♣/3♦. Not playing Kaplan some may bid: Opener Responder 1♥ 2♣* 2♦ 3♦ Pass Pass As it turns out 3♦ makes 4 and 3♣ makes only 3. The last example is Deal B.6 in DeSerpa (2017, p.79) where the total HCP=25, but recall 13-SST is 2 = 11 tricks with 19-21 working points and add 1 for 22-24 implies 12, in the slam zone. Opener Responder ♠AJ10974 ♠3 ♥Q7 ♥AK107 ♦J ♦1083 ♣AJ107 ♣KQ763 Playing 1NT* forcing did you get to the 6♣ slam? The bidding using the Two-Club Marionette Convention is: Opener Responder 1♠ 2♣* 2♠ 2NT⇒3♣ 3♣* 3♥ heart invitational bid 4♦*(interest) 4♥ 4♥ (Spades better) 6♣ Pass Pass Some bridge players use the Two-Way Nebulous 2♣* forcing response with 10+ HCP and 1NT as semi-forcing with 0-9 HCP for handling strong balanced hands facing a 1♥/1♠ opening. The bids for the Two-Way Nebulous 2♣* approach also begin with a forced relay to 2♦* (for examples and an in depth analysis of the system go to http://bridgewinners.com/article/print/better-21-bidding-the-nebulous-2c-bid ---Andrew Gumperz’s article ---the idea was invented by Eddie Wold). A review is provided on the site: www.bridgewebs.com/Ocala under Timm’s Bridge Bits. .
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